NULL
size_t
ptrdiff

FILE
stdin
stdout
stderr

FILENAME_MAX
FOPEN_MAX
EOF
TMP_MAX
_IOFBF
_IOLBF
_IONBF
BUFSIZ

fopen
freopen
fflush
fclose
_fcloseall
remove
rename
tmpfile
tmpnam
setvbuf
setbuf

fprintf
printf
sprintf
vprintf
vfprintf
vsprintf

fscanf
scanf
sscanf

fgetc
fgets
fputc
fputs
getc
getchar
gets
putc
putchar
puts
ungetc

fread
fwrite

SEEK_SET
SEEK_CUR
SEEK_END
fpos_t

fseek
ftell
rewind
fgetpos
fsetpos

clearerr
feof
ferror
perror

isalnum
isalpha
iscntrl
isdigit
isgraph
islower
isprint
ispunct
isspace
isupper
isxdigit

tolower
toupper

strcpy
strncpy
strcat
strncat
strcmp
strncmp
strchr
strrchr
strspn
strcspn
strpbrk
strstr
strlen
strerror
strtok

memcpy
memmove
memcmp
memchr
memset

HUGE_VAL

sin
cos
tan
asin
acos
atan
atan2
sinh
cosh
tanh
exp
log
log10
pow
sqrt
ceil
floor
fabs
ldexp
frexp
modf
fmod

RAND_MAX
EXIT_SUCCESS
EXIT_FAILURE
div_t
ldiv_t
quot
rem

atof
atoi
atol
strtod
strtol
strtoul
rand
srand
calloc
coreleft
malloc
realloc
free
abort
atexit
exit
system
getenv
bsearch
qsort
abs
labs
div
ldiv

NDEBUG
assert

va_list
va_start
va_arg
va_end

jmp_buf
setjmp
longjmp

SIG_DFL
SIG_IGN
SIG_ERR
SIGABRT
SIGFPE
SIGILL
SIGINT
SIGSEGV
SIGTERM
signal
raise

clock_t
time_t
CLOCKS_PER_SEC
tm
tm_sec
tm_min
tm_hour
tm_mday
tm_mon
tm_year
tm_wday
tm_yday
tm_isdst

clock
time
difftime
mktime
asctime
ctime
gmtime
localtime
strftime

CHAR_BIT
CHAR_MAX
CHAR_MIN
INT_MAX
INT_MIN
LONG_MAX
LONG_MIN
SCHAR_MAX
SCHAR_MIN
SHRT_MAX
SHRT_MIN
UCHAR_MAX
UINT_MAX
ULONG_MAX
USHRT_MAX

FLT_RADIX
FLT_ROUNDS
FLT_DIG
FLT_EPSILON
FLT_MANT_DIG
FLT_MAX
FLT_MAX_EXP
FLT_MIN
FLT_MIN_EXP
DBL_DIG
DBL_EPSILON
DBL_MANT_DIG
DBL_MAX
DBL_MAX_EXP
DBL_MIN
DBL_MIN_EXP

errno
ENOENT